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internal/sm2ec: loong64 v6

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Sun Yimin 2025-10-15 14:36:49 +08:00 committed by GitHub
parent 593c640f05
commit 5b99eb20b8
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2 changed files with 19 additions and 14 deletions
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28
internal/sm2ec/p256_asm_loong64.s
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@ -1621,7 +1621,7 @@ TEXT ·p256PointAddAffineAsm(SB),0,$264-48
STx(h)
LDy(z1in)
CALL p256MulInternal<>(SB) // z3 = h * z1
CALL sm2P256MulInternal<>(SB) // z3 = h * z1
// iff select == 0, z3 = z1
MOVV (8*8)(a_ptr), acc0
@ -1666,35 +1666,35 @@ TEXT ·p256PointAddAffineAsm(SB),0,$264-48
MOVV y3, (8*11)(t0)
LDy(z1sqr)
CALL p256MulInternal<>(SB) // z1 ^ 3
CALL sm2P256MulInternal<>(SB) // z1 ^ 3
LDx(y2in)
CALL p256MulInternal<>(SB) // s2 = y2 * z1ˆ3
CALL sm2P256MulInternal<>(SB) // s2 = y2 * z1ˆ3
STy(s2)
LDx(y1in)
CALL p256SubInternal<>(SB) // r = s2 - s1
CALL sm2P256Subinternal<>(SB) // r = s2 - s1
STx(r)
CALL p256SqrInternal<>(SB) // rsqr = rˆ2
CALL sm2P256SqrInternal<>(SB) // rsqr = rˆ2
STy (rsqr)
LDx(h)
CALL p256SqrInternal<>(SB) // hsqr = hˆ2
CALL sm2P256SqrInternal<>(SB) // hsqr = hˆ2
STy(hsqr)
CALL p256MulInternal<>(SB) // hcub = hˆ3
CALL sm2P256MulInternal<>(SB) // hcub = hˆ3
STy(hcub)
LDx(y1in)
CALL p256MulInternal<>(SB) // y1 * hˆ3
CALL sm2P256MulInternal<>(SB) // y1 * hˆ3
STy(s2)
MOVV hsqr(0*8), x0
MOVV hsqr(1*8), x1
MOVV hsqr(2*8), x2
MOVV hsqr(3*8), x3
CALL p256MulInternal<>(SB) // hsqr * u1
CALL sm2P256MulInternal<>(SB) // hsqr * u1
MOVV y0, h(0*8)
MOVV y1, h(1*8)
MOVV y2, h(2*8)
@ -1703,14 +1703,14 @@ TEXT ·p256PointAddAffineAsm(SB),0,$264-48
p256MulBy2Inline // u1 * hˆ2 * 2, inline
LDy(rsqr)
CALL p256SubInternal<>(SB) // rˆ2 - u1 * hˆ2 * 2
CALL sm2P256Subinternal<>(SB) // rˆ2 - u1 * hˆ2 * 2
MOVV x0, y0
MOVV x1, y1
MOVV x2, y2
MOVV x3, y3
LDy(hcub)
CALL p256SubInternal<>(SB)
CALL sm2P256Subinternal<>(SB)
MOVV (8*0)(a_ptr), acc0
MOVV (8*1)(a_ptr), acc1
@ -1757,19 +1757,19 @@ TEXT ·p256PointAddAffineAsm(SB),0,$264-48
MOVV h(1*8), y1
MOVV h(2*8), y2
MOVV h(3*8), y3
CALL p256SubInternal<>(SB)
CALL sm2P256Subinternal<>(SB)
MOVV r(0*8), y0
MOVV r(1*8), y1
MOVV r(2*8), y2
MOVV r(3*8), y3
CALL p256MulInternal<>(SB)
CALL sm2P256MulInternal<>(SB)
MOVV s2(0*8), x0
MOVV s2(1*8), x1
MOVV s2(2*8), x2
MOVV s2(3*8), x3
CALL p256SubInternal<>(SB)
CALL sm2P256Subinternal<>(SB)
MOVV (8*4)(a_ptr), acc0
MOVV (8*5)(a_ptr), acc1

5
internal/sm2ec/sm2p256_asm.go
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@ -310,6 +310,11 @@ var supportBMI2 = cpu.X86.HasADX && cpu.X86.HasBMI2
var supportAVX2 = cpu.X86.HasAVX2
var (
supportLSX = cpu.Loong64.HasLSX
supportLASX = cpu.Loong64.HasLASX
)
// Montgomery multiplication. Sets res = in1 * in2 * R⁻¹ mod p.
//
//go:noescape